Fruit or preserve jar



' F12. H. PARKE R FRUIT 0R PRESERVE JAR y Feb. l 19, 1929. 1,702,795

Filed March 27, i926 Patented Feb. 1s, 1929.

UNITED STATES unioni) n. r 1: or sou'rn wngm'ourn, Massacnusnzr'rs.

nur! on. rnnsnnvn un.

The invention is applicable in connection invention applied in'connection therewith, the

with so-ca-lled fruit or preserve jars.

. The invention has for its general object to provide for facilitating the opening `of a 5 lilled fruit or preserve jar, to give access to its contents, through removal of the vcap or closure of the jar from its seat around the mouth 0f the jar.

As is well-known, a cap or closure often is held so firmly to its seat by external atmospheric pressure, in consequence of the existence of a more or less complete vacuum inside the jar, that great digtliculty is experienced in eecting removal. This diiculty is more troublesome when the nature yof the contents of the jar is such as to cement or stick the cap or closure toL its seat. The usual recourse, `in practice, is toinsert a knife-blade, or otherimplement, between the rim of the cap or closure and the seat therefor, and then pry the rim apart from the seat so as either to overcome the sticking and the atmospheric pressurel wholly through the application of force, or, through admitting air into thejar, relieve the vacuum and by thereby neutralizing the external atmospheric pressure facilitatey the lifting andremoval of the cap or closure. Grdinarily, however, a raised rim exists at the mouth of a j ar, such rim being located interiorly with respect to the seat. It keeps the packing ring and cap or closure from displacement transversely of the Ajar-mouth. This raised rim constitutes an obstacle which prevents al 36 knife-blade or other implement from being more than slightly entered between the rim v of the cap or closure and the seat, and thereby renders it ditlcult to open a j ar. The operation of prying often results in more or less 40 breaking and splinteiring ofl the glass of which the cap or` closure and the jar .are formed. f

A special aim of the invention is, by a simple modification of theraised'riin aforesaid, or of the equivalent thereof provided in the case of modified forms of ars and closures, to provide for the application of a knife-blade or the like in such manneras to facilitate the admission of air and the freeing of the cap or closure, and in such manner, also, as to eliminate all tendency to breaking 'or splintering ofthe cap or closure and jarmouth.

Embodiments ofthe invention are shown L in the drawings, in which latter,-

Fig. l'shows a jar and its cover withthe cover being represented as partly broken away.

Fig; 2 shows the jar of Fig. 1, without the cover, the jar being partly 1n side elevation and partly in vertical section, with a packin rin in place on the seat at the mouth-'en of t e jar. l

. Fig. 3 is a plan vieysT of the jar. Fig. 4 is a sectional view showing another form of embodiment of the principle of the invention.

As represented in Figs. 1, 2 and 3 of the drawings, the jar 1 and cover 2 shown in such views are as heretofore inthe art, save in the respect in which the raised or upstandy Huss-urn] .Nappueatio'n med umn 2z, 192s. serial No. 98,002.

ing rim 3 of the jar, at the mouth of the latv ter, is modified in carrying the invention into eii'ect.' As thus represented, the jar 1 is formed with a seat 4, Fig. 2, at the mouth-end thereof, around the raised rim 3 and exterior-l ly of the latter` to which seat the packin ring 5 is applied, as well as the downturn rim of cap or closure 2. Said downturned rim is shown i'n Fig. 1 resting in customary manner upon the packing ring and encircling the raised rim `3 of the 3er-mouth.

At 6, Fig. 1, is `shown the usual locking bail by. means of which the cap or closure is held under pressure to its seat. The operating handle of such bail is indicated at 61.

In accordance with the invention I form Fig. 3. When more-than one gap or notch is formedin the said rim, the latter thereby is` given a crenelated. character. The notched serves as eiiiciently a's the former continuous yor crenelated raised or upstanding rim subraised rim the functiony of positioning the".

packing ring and the cap or cover with relation to the mouth of the )ar and to the seat substantially in the plane of the seat.

When it is vdesired to eect unsealing of the cap or cl'osure, and removal thereof, the end of a knife-blade or other convenient im around such mouth.- The gaps or notches are plement is pushed inward beneath the rim.l

`\of the vcap or closure, either above or below the packingring, and also into or through one of the gaps or notches 41, 41. B reason ofthe gap or notch into which the ade or implement is directed being substantially in the plane of the seat, it allows the blade or 'other implement. to enter unobstructeduly radially in a horizontal direction as far., i;

maybe required for admission of air into the jar to equalize the atmospheric pressure inside and outside, or for enabling the knifeblade or other implement to be utilized effectively in lifting the cap or closure in overcoming adhesion to the seat.y

The invention is capable of being applied in thev ease of jars and caps or closures of istV ` various shapes and sizes.

ln'Fi'g. 4c the crenelated rim or flange, 3l, is formed on the underside of the cap or closure, 2l, and extends down Within the annular mouth of the jar, 11, such mouth being plain and Without a raised rim in this instance, and its end-surface constituting the seat for the packing ring 5.

Each of the foregoing illustrative embodiments of the principle of the invention coinprises a jar having` a seattaround its open if, is applied to said seat, one of said parts having a rim or flange proiecting across the plane ofthe said seat, and such rim Aor ztlange loeing formed with a gap or notch so allocated with respect to the packing-ring seat as to permit a knife-blade, or the like, inserted heneath the edge of the cap or closure trie `packing-ring seat to be thrust past such seat,

through the. gap ornotch, and moved beyond said rim or flange, into the interior ofthe jar to facilitate dislodgineiit of the cap orv closure. l

2. A'jai having` a seat around its open mouth, and a cap or closure which is applied to said seat, one of said parts having a projecting creiielated rim or llziiige projecting across the plane of the sa'id seat, with the gaps or notches of the said riiii or flange so allocated with respect'to such seat as to'permit a knife-blade, or the like, inserted loeneath the' edge of the Cap or closuie at such seat to be thrust past the seat, through a gap or notch,` and inward beyond said-rim or ange, into the interior of the jar to facilitate dislodginent of the cap or closure.

3. A jar of" the type having at the mouthend thereof an exteriorly accessible seat and applied packing-ring, and a cap or closure Which contacts by a rim thereof With said packing-ring., one of the said parts provided with a supplemental rim or llange projecting across the plane of said seat, said jar characterized by having the said supplemental rim or Harige formed with a gap or notch so allocated With respect to the seat as to permit a lmife-blade, or the like, to heapplied at the packing-ring and pushed inward past such ring through the gap or notch in said projecting rim or idange and into the jar to 'facilitate dislodgment of the cap or closure.,

' `tta-armonia n. Pannen, 

